KSZ8721BL vs KSZ8721BLI Comparison

Detailed side-by-side comparison of KSZ8721BL by Microchip Technology and KSZ8721BLI by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.

Microchip Technology
KSZ8721BL KSZ8721BL - 100Mbps Ethernet PHY | Microchip | LQFP-48

KSZ8721BL - 100Mbps Ethernet PHY | Microchip | LQFP-48

KSZ8721BL ✓ Active
Microchip Technology
KSZ8721BLI KSZ8721BLI - 3.3V 10/100 Ethernet PHY | Microchip

KSZ8721BLI - 3.3V 10/100 Ethernet PHY | Microchip

KSZ8721BLI ✓ Active

Specification Comparison

Parameter KSZ8721BL KSZ8721BLI
Brand Microchip Technology Microchip Technology
Category Interface ICs Interface ICs
Lifecycle Status Active Active
Product Type 10/100BASE-TX/FX MII physical-layer transceiver 10/100BASE-TX/FX Ethernet physical-layer transceiver
Data Rate 100 Mbps 10 Mbps and 100 Mbps
Supply Voltage 3.3 V 3.3 V
Core Voltage 2.5 V —
Host Interface MII and RMII MII and RMII
Ethernet Type 10/100BASE-TX/FX —
Operating Temperature Range 0°C to +70°C —
Supply Current 151 mA —
Number of Pins 48 —
Package 48-pin LQFP 48-LQFP, 7 x 7 mm
MDI/MDI-X Automatic crossover supported —
Power-Supply Architecture 3.3 V single power supply with 2.5 V core —
Media Support 10BASE-T/100BASE-TX/100BASE-FX —
Temperature Grade Commercial —
Mounting Type Surface mount Surface mount
Interface Type MII/RMII Ethernet interface —
RoHS Status [DATA_NEEDED: RoHS status] Compliant
REACH Status [DATA_NEEDED: REACH status] [DATA_NEEDED: REACH status]
AEC-Q100 Qualification [DATA_NEEDED: AEC-Q100 qualification] [DATA_NEEDED: AEC-Q100 qualification status]
Operating Voltage Range — 2.5 V to 3.3 V
Copper Media Support — 10BASE-T and 100BASE-TX
Fiber Media Support — 100BASE-FX
Number of Transceivers — 1
Ethernet Standards — IEEE 802.3 and IEEE 802.3u
Auto Crossover — MDI/MDI-X auto-crossover
Pin Count — 48 pins
Industrial Temperature Range — -40°C to +85°C
Lead-Free Status — [DATA_NEEDED: lead-free status]
Halogen-Free Status — [DATA_NEEDED: halogen-free status]
Conflict Minerals Status — [DATA_NEEDED: conflict-minerals status]
Observed Unit Price — $2.5389 as of 2026-10-30
Distributor Availability — In stock at LCSC as of 2026-10-30

Datasheets & Resources

Browse All Products Create BOM Request Quote